Chemical Formula: NaFe++3Al6(BO3)3Si6O18(OH)4
Help on Composition: Composition: Molecular Weight = 1044.39 g
 
Hydrogen 0.39 % H 3.45 % H2O 0.00 %
Boron 3.11 % B 10.00 % B2O3 0.00 %
Nitrogen 1.34 % N 2.11 % N2O 0.00 %
Oxygen 47.49 % O 0.00 % 0.00 %
Aluminum 15.50 % Al 29.29 % Al2O3 0.00 %
Silicon 16.14 % Si 34.52 % SiO2 0.00 %
Iron 16.04 % Fe 22.94 % Fe2O3 0.00 %


100.01 % 102.31 %
 
Help on Empirical Formula: Empirical Formula: NFe3+3Al6(BO3)3Si6O18(OH)4
Help on Environment: Environment: Granites, diorites, gabbro pegmatites, greisens, skarns and quartz veins
Help on Locality: Locality: Sonnenberg, Bodenmais and Spessart, Germany.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Old name of unknown origin
Help on Synonym: Synonym: Tourmaline